Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Videos
Videos
Thesis submission
Thesis submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Contact us
Contact us
Discovery of a glitch in the accretion- powered pulsar SXP 1062
Download
index.pdf
Date
2017-11-01
Author
Serim, Muhammed Miraç
Sahiner, S.
Cerri-Serim, D.
İNAM, SITKI ÇAĞDAŞ
Baykal, Altan
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
10
views
15
downloads
Cite This
We present timing analysis of the accretion-powered pulsar SXP 1062, based on the observations of Swift, XMM-Newton and Chandra satellites covering a time span of about 2 yr. We obtain a phase coherent timing solution that shows that SXP 1062 has been steadily spinning down with a rate-4.29(7) x10(-14) Hz s(-1) leading to a surface magnetic field estimate of about 1.5 x 10(14) G. We also resolve the binary orbital motion of the system from X-ray data that confirms an orbital period of 656(2) d. On MJD 56834.5, a sudden change in pulse frequency occurs with Delta v = 1.28(5) x 10(-6) Hz, which indicates a glitch event. The fractional size of the glitch is Delta v/v similar to 1.37(6) x 10(-3) and SXP 1062 continues to spin-down with a steady rate after the glitch. A short X-ray outburst 25 d prior to the glitch does not alter the spin-down of the source; therefore, the glitch should be associated with the internal structure of the neutron star. While glitch events are common for isolated pulsars, the glitch of SXP 1062 is the first confirmation of the observability of this type of events among accretion-powered pulsars. Furthermore, the value of the fractional change of pulse frequency ensures that we discover the largest glitch reported up to now.
Subject Keywords
Accretion accretion discs
,
Stars: neutron
,
Pulsars: individual: SXP 1062
,
X-rays: binaries
URI
https://hdl.handle.net/11511/46576
Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
DOI
https://doi.org/10.1093/mnras/stx1771
Collections
Department of Physics, Article
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. M. Serim, S. Sahiner, D. Cerri-Serim, S. Ç. İNAM, and A. Baykal, “Discovery of a glitch in the accretion- powered pulsar SXP 1062,”
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
, vol. 471, no. 4, pp. 4982–4989, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46576.